Ballast / Transformer

Philips Advance 71A7801001D - High Pressure Sodium - C & C Ballasts - 50W - S68 ANSI Code - 120-277V -  90% Power Fact - HX-HPF Circuit Type - 2 Feet Ballast to Lamp Distance - 105°C Temp Rating

Philips Advance 71A7807001DB - High Pressure Sodium - C & C Ballasts - 50W - S68 ANSI Code - 120V -  90% Power Fact - R-HPF Circuit Type - 2 Feet Ballast to Lamp Distance - 125°C Temp Rating